Massage roller



FIG. 1 is front view of a massage roller;

FIG. 2 is back view of the massage roller;

FIG. 3 is a right side view of the massage roller;

FIG. 4 is a left side view of the massage roller;

FIG. 5 is a top view of the massage roller;

FIG. 6 is a bottom view of the massage roller; and,

FIG. 7 is a perspective view of the massage roller. 

CLAIM The ornamental design for a massage roller, as shown and described. 